Slotted Casing
Slotted Casingyog siab -precision screen yeeb nkab tsim los ntawm kev txiav longitudinal lossis transverse slots rau hauv phab ntsa ntawm tus qauv API casing. Nws lub luag haujlwm tseem ceeb yogxuab zeb tswj: nws tso cai rau cov kua dej (roj, roj, lossis dej) nkag mus rau hauv lub qhov dej thaum lim tawm cov xuab zeb uas tuaj yeem ua rau cov twj thiab cov khoom siv puas tsuaj.
Cov ntaub ntawv Precision:Niaj hnub nimno CNC los yog laser txiav tso cai rau qhov dav dav li nqaim li0.005 nti (0.12 hli)nrog tolerances nyob rau hauv± 0.001 nti (0.025 hli).
Structure Integrity:Tsis zoo li perforated kav, slotted casing khaws cia mus txog70% mus rau 80%ntawm thawj cov yeeb nkab lub zog, ua rau nws zoo tagnrho rau qhov tob, siab -load qhov dej.
Slotted Casing Specification
| Yam khoom | Cov ntsiab lus technical |
| Txuj | API Spec 5CT, API 5L |
| Qib khoom | J55, K55, N80-Q, L80, P110, Stainless hlau (304/316L) |
| Pipe OD Range | 2-3/8 "mus rau 20" (60.3mm - 508mm) |
| Phab ntsa Thickness | 4.24mm txog 16.13mm |
| Qhov dav | 0.12mm-4mm (0.005 "- 0.15") |
| Qhov Ntev | 50mm-200mm |
| Qhov ntom ntom | Kev txiav txim los ntawm "Open Area" yuav tsum tau (feem ntau 2% - 6%) |
Daim Ntawv Qhia Qhov Loj ntawm Cov Yeeb Nkab Qhov Loj (Cov Khoom Siv Siv Hluav Taws Xob)
| Tube OD (inch) | Qhov hnyav (lb / ft) | Phab ntsa Thickness (mm) | Max qhov ntev (mm) | Qhov dav dav (mm) |
| 4-1/2" | 11.60 | 6.35 | 80 | 0.25 - 1.50 |
| 5-1/2" | 17.00 | 7.72 | 100 | 0.25 - 2.00 |
| 7" | 23.00 | 8.05 | 120 | 0.50 - 3.00 |
| 9-5/8" | 40.00 | 10.03 | 150 | 0.50 - 4.00 |
Hom los ntawm Slot Pattern
Ncaj Qhov Ncauj:Cov phab ntsa qhov rooj yog sib npaug. Nws yog qhov pheej yig tshaj plaws tab sis tuaj yeem ua rau txhaws yog tias cov xuab zeb tsim tau zoo.
Keystone Qhov (Trapezoidal):Lub qhov yog nqaim nyob rau sab nraud thiab wider nyob rau hauv.
Cov txiaj ntsig: Nws yogtus kheej - ntxuav. Txhua cov xuab zeb uas dhau los ntawm qhov qhib sab nrauv yuav yooj yim poob los ntawm qhov dav sab hauv qhov sib txawv es tsis txhob daig.
Staggered Pattern:Cov slots tau teem rau hauv kab sib tshooj. Qhov no tuav lub siab tshaj plaws kev sib tsoo lub zog ntawm cov yeeb nkab.
Slotted Casing Pipe Nta
Tus nqi -zoo:Qhov tseem ceeb pheej yig dua li cov hlau- qhwv cov ntxaij vab tshaus los yog cov xuab zeb tswj hwm zoo.
High Rigidity:Kev ua haujlwm zoo heev rau kev khoov thiab lub zog thaum lub sijhawm teeb tsa hauv qhov dej sib txawv lossis kab rov tav.
Smooth nto:Tsis muaj cov xov hlau sab nraud lossis cov welds uas tuaj yeem rub tawm thaum khiav cov yeeb nkab rau hauv lub qhov.
Keystone Design Advantage:Txo qhov kev pheej hmoo ntawm "plug" piv rau cov qhov ncaj.
Daim ntawv thov ntawm Slotted Pipe
Thermal Wells (SAGD):Siv rau hauv cov roj hnyav rov qab uas muaj qhov kub thiab txias.
Kab rov tav tiav:Qhov zoo tshaj plaws rau cov kab rov tav ntev uas xaim - qhwv cov ntxaij vab tshaus yuav raug puas tsuaj thaum lub sijhawm teeb tsa.
Dej qhov dej:Siv nyob rau hauv unconsolidated xuab zeb thiab gravel aquifers los muab dej huv.
Tsawg-Pressure Wells:Lwm txoj hauv kev lag luam rau cov xuab zeb nyuaj- tswj cov ntxaij vab tshaus hauv cov qauv ruaj khov.
Perforated Casing Pipe Vs. Slotted Casing Pipe
| Feature | Perforated casing | Slotted Casing |
| Qhib hom | Round qhov (feem ntau 10mm +) | Qhov me me (li 0.12mm) |
| Lub luag haujlwm tseem ceeb | Reservoir nkag / Flow path | Xuab zeb tswj / lim |
| Xuab zeb tswj | Poor (xuab zeb nkag tau yooj yim) | Zoo heev(blocks tsim xuab zeb) |
| Lub zog | High (localized qhov) | Moderate (qhov chaw ua raws li kev ntxhov siab risers) |
| Daim ntawv thov | Consolidated formations | Unconsolidated / Sandy formations |
| Nqi | qis tshaj | Nruab nrab |
Yuav ua li cas xaiv Slotted Casing Pipe
Kev xaiv nyob ntawm qhov tseem ceebtsim xuab zeb grain loj:
Sieve Analysis:Ua ib tug sieve tsom xam ntawm tsim xuab zeb.
Txoj Cai Dav Dav:Ib txoj cai dav dav yog tias qhov dav dav yuav tsum yog2x ua d10qhov lojlos yogsib npaug d50qhov lojntawm kev tsim cov xuab zeb (nyob ntawm seb cov xuab zeb tswj kev tshawb xav siv).
Open Area Requirement:Xam cov kua dej uas yuav tsum tau muaj. Cov nqi ntws siab dua yuav tsum muaj ntau qhov qhib ib ko taw (qhov qhib siab dua), tab sis ntau qhov qhib yuav ua rau cov yeeb nkab tsis muaj zog.
Khoom Qib:Xaiv cov qib steel raws li qhov dej qhov tob, siab, thiab CO2 / H2S qib.
FAQ
Dab tsi yog lub hom phiaj ntawm cov kav dej slotted?
Lub hom phiaj tseem ceeb ntawm cov yeeb nkab slotted yogxuab zeb tswj.
Nws ua raws li lub tshuab lim dej los ntawm kev tso cov roj, roj, lossis dej ntws mus rau hauv cov yeeb nkab thaum lub sijhawmthaiv kev tsim cov xuab zeb thiab khib nyiablos ntawm kev nkag. Qhov no tiv thaiv lub qhov dej los ntawm clogging thiab tiv thaiv downhole twj thiab cov cuab yeej nto los ntawm abrasive puas.
Kuv yuav ua li cas xaiv qhov loj qhov loj rau kuv cov yeeb nkab slotted?
Xaiv qhov loj qhov loj yog nyob ntawmSieve Analysisntawm koj cov xuab zeb tsim. Ntawm no yog tus txheej txheem 3-kauj ruam:
Siv Sieve Analysis:Siv ib qho piv txwv ntawm cov xuab zeb tsim rau hauv ib lub chaw kuaj mob los txiav txim qhov loj me me (tseem ntsuas hauv D tus nqi, xws li
D50los yog D10).
Thov "Rule of Thumb":
Cov D50Txoj cai:Teem lub qhov dav sib npaug rau qhov nruab nrab grain loj (D50 ).
2 x Rule:Teem lub qhov dav rau 2 npaug ntawm qhov me me ntawm 10% ntawm cov xuab zeb (2 × D10).
Balance Flow vs. Filtering:
me me dhau:Clogs yooj yim thiab txwv tsis pub ntws.
Loj dhau:Tso xuab zeb ntau dhau rau hauv qhov dej.
Puas yog laser slotted casing kav siv tau rau hauv cov dej qab ntsev?
Yog lawm, tab sis tsuas yog tias koj xaiv txoj caikhoom.
Thaum laser txiav muab lub siab precision xav tau rau cov dej ntsev pom, cov hlau nws tus kheej yuav tsum yog corrosion-resistant:
Standard Steel (Carbon Steel):Yuav tsumtsis yogsiv, raws li dej ntsev yuav ua rau nws xeb thiab txhaws cov qhov nyob rau hauv ib lub sij hawm luv luv.
Cov ntaub ntawv pom zoo:Rau cov dej qab ntsev, koj yuav tsum sivStainless hlau (304, 316L)los yogDuplex Hlau. Cov ntaub ntawv no tiv thaiv chloride corrosion thiab xyuas kom lub laser - txiav qhov qhib thiab ua haujlwm tau ntau xyoo.
Cim npe nrov: Tuam Tshoj slotted casing manufacturers, lwm tus neeg, Hoobkas
Koj Tseem Yuav Zoo Li
Xa kev nug